Concrete-pipe joint.



IVI. I. WYERS.. comcmine PIPE 10mm APPLICATION FILED APR: 2|. ISH;

Patented; Sept. 25; 19171K.

2 SHEETS-SHEET I IvI. I. wYERs.

CONCRETE PIPE Jouw APPLICATION FILED APR. 2ll 19|?.

Lm Eatemedepn 25, 1917.

l im* /4 I l@i o F y@ /5/0/5 l /0 ,5- M /7/ /4 a /f//a II W ARKZONA.

CUNCF/ETE-PEPE JENT.

Latinas.,

application filed April 2l, 1917.

To all whom t may concern.

Be it known that lf, lvlansnnnn d. l/llrnns, residing` at FhoeniX, in the Acounty oi l=./laricopa, State or" Arizona, a citizen ci the United States, have invented certain new and useful lmprovements in Concretedipe Joints; and .l do hereby declare the `following to he a full, clear, and enact description ofthe invention, such as will enable others skilled in the art to which it pertains to maire and use the same.

My invention relates to an improvement in concrete pipe joints especially designed :tor use with concrete, terra cotta and other drain or service pipes oi a similar nature.

rThe object or the invention is to provide a joint -tor a concrete pipe to he used for .draining waste water and for conveying water for irrigating and other numerous purposes.

A further object is to provide a joint for a concrete pipe arranged and formed in such a manner that the pipe will he water tight. l

A further object is to provide a pipe with a joint which is simple, inexpensive and durable in construction, not liable to get out of order and which attains the desired result in a perfect manner.

rlhe invention consists in the severaly fiestures and in the construction, combina on and arrangement of features as more :fully hereinafter describedv and claimed.

Referring to the drawings Figure l is a side view in elevation.

Fig. 2 is an end viewu Fig. 3 isa central longitudinal section.

Fig. el is a side View in elevation or" one of the inner oint sections.

Fig. 5 is a side view in elevation of my invention when in use as a liume.

Fig. 6 is a cross-section on the line m-as or" Fig. 5.

Fig. 7 is a longitudinal sectional view of a modiiied form of joint.

ln the drawings in which similar reerence characters denote similar parts throughout the several views, l represents a line of concrete drain pipe comprising plurality oi annular hollow inner sections 2 placed or laid end to end and which taper or incline inwardly as at 3 'from a point 4i, at sulostantially the middle thereoi, to each end 5.

Breaking joint with the inner sections E3 are a plurality of annular outer sections 6 placed or laid end to end over the annular Specification of Letters Patent.

Patented Sept. 25, illf.

Serial No. 163,662. 1

inner sections 2 the inner surfaces oil which are tapered outwardly as at 7 from a point 8, at substantially the middle thereof, to each end C. y

'lhevouter annular sections G are usually orpreferahly made l2 inches in length and 5 inches indiameter on the outside, 3 inches inside diameter at middle point 8 and inches each end, while the inner annular sections 2 are made l2 inches long with two inch waterway or channel, l inches in diameter at the middle point anl inches at each end.

lt will he seen that a line oit pipe constructed or formed of sections made in accordance with my invention will he exceedingly easy to assemble and the size and weight of the sections render them easy to handle hoth in loading and unloading and in laying or placing them 'when forming the line of pipe. A

In the modiiied `orm of my inventio shown in Fig. 7 oi the drawings a plurality of annular inner hollow sections l0 are pio vided each having an exterior surface il, curved outwardly from end to end, and hrealring joint with a plurality of annular outer hollow sections l2,the inner diameter of the sections l2 curving or daring ou wardly as at i3 from a point ld, at subst r tially the center, to each end l5 thereof.

l do not wish to he understood as limitm ing mysel'l tothe speciiic details of construction and arrangement as herein-described and illustrated, as it is manifest that variations and modifications may he made in the features or construction and arrangement, in the adaptation oi the device to various conditions use, without departing ir the spirit scope oi" my invention and in provements. therefore reserve the rightto all such variations and modiiications as ...1., emu "1H a f e.- .propeiiy ian wit iin tie scope oi my inver.

connection between the end portions of the outer sections and the enlarged middle portions of the outer sections reinforcing'the larged and the ends of which abut against each other, the connection between said ends being reinforced by the said enlarged portions of the inner sections, and the inner surfaces of the outer sections tting the contour of the outer surfaces of the inner sections and the connection between the ends of the inner sections'being reinforced by the 20 by forming a pipe of uniform diameter throughout. Y

In testimony whereof I have aiiixed my signature.v

MARSHALL J. WYERS.

' enlarged portions of the outer sections there- 

